2025RAA....25f5021L

Query : 2025RAA....25f5021L

2025RAA....25f5021L - Research in Astron. and astroph., 25, part no 6, 5021 (2025/June-0)

Polarization Profiles of Globular Cluster Pulsars from FAST. I. 25 Profiles from Previously Known Pulsars.

LIU T., WANG L. and PAN Z.

Abstract (from CDS):

We present a polarization study of 25 globular cluster (GC) pulsars observed with the Five-hundred-meter Aperture Spherical radio Telescope (FAST), including 15 profiles measured for the first time. The pulse width-period relationships for millisecond pulsars (MSPs) in GCs follow power-law indices of -0.268 (W10) and -0.330 (W50), consistent with normal pulsars. Only 20% of the sample exhibit clear S-shaped position angle curves-significantly fewer than in the normal pulsar population. Rotation Measures (RMs) for these pulsars suggest that GCs near the Galactic plane show higher RMs, in agreement with former studies. Polarization ratios were measured, with M53A showing the highest linear polarization (56%) and M15H the highest absolute circular polarization (37%). On average, GC pulsars exhibit lower circular (-1%) and absolute circular (11%) polarization compared to normal pulsars observed with Parkes (5% and 32%, respectively). However, their polarization distributions align with MSPs in the Galactic plane, suggesting GC environments do not drastically alter emission properties.

Abstract Copyright: © 2025. National Astronomical Observatories, CAS and IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved.

Journal keyword(s): (stars:) pulsars: general - (Galaxy:) globular clusters: general - polarization

Simbad objects: 43

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Number of rows : 43
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
2 PSR J1312+1810A Psr 13 12 53.67911 +18 10 27.5800           ~ 4 0
3 M 53 GlC 13 12 55.25 +18 10 05.4     7.79     ~ 907 0
4 PSR J1342+2822B Psr 13 42 11.08686 +28 22 40.0844           ~ 16 1
5 PSR J1342+2822D Psr 13 42 11.35220 +28 22 30.1600           ~ 12 0
6 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2593 0
7 PSR J1342+2822A Psr 13 42 13.79168 +28 23 01.9660           ~ 11 1
8 PSR J1518+0204D Psr 15 18 30.4 +02 05 00           ~ 7 0
9 PSR J1518+0204B Psr 15 18 31.458 +02 05 15.47           ~ 46 1
10 PSR J1518+0204C Psr 15 18 32.8 +02 04 48           ~ 30 0
11 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 2095 0
12 PSR J1518+0204E Psr 15 18 33.3 +02 04 38           ~ 7 0
13 NAME M 5 PSR A * 15 18 33.3176 +02 05 27.550           ~ 49 2
14 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2291 0
15 PSR J1720-0533 Psr 17 20.0 -05 33           ~ 15 0
16 M 14 GlC 17 37 36.15 -03 14 45.3   9.55 5.73     ~ 420 0
17 Cl Terzan 5 Cl* 17 48 05.00 -24 46 48.0           ~ 948 1
18 NGC 6517 GlC 18 01 50.376 -08 57 34.39   11.08       ~ 215 0
19 PSR J1801-0857B Psr 18 01 50.5658 -08 57 32.810           ~ 12 0
20 PSR J1801-0857A Psr 18 01 50.6124 -08 57 31.850           ~ 11 0
21 PSR J1801-0857C Psr 18 01 50.7407 -08 57 32.700           ~ 10 0
22 PSR J1801-0857D Psr 18 01 55.3653 -08 57 24.330           ~ 15 0
23 NGC 6539 GlC 18 04 49.74 -07 35 09.1           ~ 247 0
24 PSR J1802-07 Psr 18 04 49.8954 -07 35 24.690     12.33     ~ 101 2
25 PSR J1824-2452A Psr 18 24 32.009 -24 52 11.10           ~ 529 2
26 GLIMPSE C01 GlC 18 48 49.7 -01 29 50           ~ 60 0
27 NGC 6749 OpC 19 05 15.36 +01 54 00.0     12.4     ~ 178 0
28 PSR B1908+00A Psr 19 11 11.02 +01 02 10.9           ~ 51 0
29 NGC 6760 GlC 19 11 12.06 +01 01 49.7   11.37 9.78     ~ 264 0
30 PSR J1911+0101B Psr 19 11 12.573 +01 01 50.44           ~ 6 0
31 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 801 0
32 PSR J1953+1846A Psr 19 53 46.44 +18 47 04.7         19.96 ~ 32 0
33 M 71 GlC 19 53 46.49 +18 46 45.1           ~ 1190 0
34 PSR B2127+11F Psr 21 29 57.1783 +12 10 02.818           ~ 23 0
35 PSR J2129+1210G Psr 21 29 57.964 +12 09 56.50           ~ 16 0
36 PSR B2127+11H Psr 21 29 58.1828 +12 09 59.291           ~ 20 0
37 PSR B2127+11E Psr 21 29 58.18447 +12 10 08.5080           ~ 27 0
38 PSR B2127+11 Psr 21 29 58.24650 +12 10 01.2339           ~ 102 2
39 PSR J2129+1210D Psr 21 29 58.274 +12 09 59.74           ~ 31 0
40 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
41 PSR J2129+1210B Psr 21 29 58.632 +12 10 00.31           ~ 31 1
42 PSR J2129+1209C Psr 21 30 01.2030 +12 10 38.159           ~ 215 2
43 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 1114 1

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